3640552612 has 6 divisors (see below), whose sum is σ = 6370967078. Its totient is φ = 1820276304.

The previous prime is 3640552609. The next prime is 3640552633. The reversal of 3640552612 is 2162550463.

It can be written as a sum of positive squares in only one way, i.e., 3640432896 + 119716 = 60336^2 + 346^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455069073 + ... + 455069080.

Almost surely, 2^3640552612 is an apocalyptic number.

It is an amenable number.

3640552612 is a deficient number, since it is larger than the sum of its proper divisors (2730414466).

3640552612 is a wasteful number, since it uses less digits than its factorization.

3640552612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910138157 (or 910138155 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 3640552612 is about 60336.9920695422. The cubic root of 3640552612 is about 1538.3521773906.

The spelling of 3640552612 in words is "three billion, six hundred forty million, five hundred fifty-two thousand, six hundred twelve".